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Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter
Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter
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Old 4th April 2019, 10:51 AM   #4851
wlowes is offline wlowes  Canada
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Default Perfect

Thanks Greg
That's exactly what I wanted. I hate to solder those tiny NDK and discover I put them upside down.

Walter
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Old 4th April 2019, 01:43 PM   #4852
Greg Stewart is offline Greg Stewart  United States
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Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter
Walter,

The trick I use with soldering the NDK's is to use a means of magnifying them (I use my cellphone's camera and magnify it as much as possible) and identify the pin 1 registration dot. Then I use a fine-tipped permanent magic marker (Sharpie brand here in the US) to mark that corner. The dot rubs off quickly with handling and using rubbing alcohol to de-flux the solder joints almost always removes it entirely... that is why you don't see it in the picture.

Greg in Mississippi

P.S. Bonus picture here shows how I use the pieces of circuit board material that you snip off Ian's new adapters as spacers when soldering the connection pins. They are about the thickest spacers you can use and still get the Cryteks to fit under the DAC board above. I'll post some pix later on how I shorten the connection pins when using Ian's original adapters with Crysteks so they will fit on the FiFoPi with sufficient headroom for the DAC board.

Of course, Walter, none of these bonus pix are of interest for your application!
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File Type: jpg Crystek on new Adptr small.jpg (339.4 KB, 301 views)
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Last edited by Greg Stewart; 4th April 2019 at 01:48 PM.
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Old 4th April 2019, 07:14 PM   #4853
wlowes is offline wlowes  Canada
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Thanks Greg. I actually do the same trick with the dot. I use a 30x jeweler's loupe to read the etching. Great minds think alike.

Your pic is most useful, as I solder one of these things once every few years, and would have been sweating over proper orientation.

I don't plan to use the Crystek but the pic will help someone. I find the NDK SDA similar in spec and much better price performance.

I would like to get my hands on one of andrea_mori's clocks however. I look forward to tasting different clocks over time.
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Old 9th April 2019, 12:31 PM   #4854
terry22 is offline terry22
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Hi Greg,
Happy to read you again and thank you for your help with my Katana.

The Crystek adapters have to be soldered like in the Kitchen oven SMT assembling tutorial Ian made, right?
I don't understand how to do, as there are smt components on both sides of the pcb.
Is there a trick?
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Old 9th April 2019, 04:41 PM   #4855
Greg Stewart is offline Greg Stewart  United States
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Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter
Hey terry22.

You are welcome.

I did all of my clock adapter soldering by hand. See my tips in post 3388 of Ian's GB thread. It is not hard... I did several last night.

Greg in Mississippi
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Old 9th April 2019, 05:13 PM   #4856
terry22 is offline terry22
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Quote:
Originally Posted by Greg Stewart View Post
Hey terry22.

You are welcome.

I did all of my clock adapter soldering by hand. See my tips in post 3388 of Ian's GB thread. It is not hard... I did several last night.

Greg in Mississippi
Thank you Greg!
I'll check your post.
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Old 10th April 2019, 07:11 AM   #4857
ilgavro is offline ilgavro
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Hi all!
Fifopi complete is arrive!!
The result is amazing sound thanks Ian.
I have some question, i use dietpi with roon bridge, in spund card option i install ess9028k2m and work but in option of roon i can choose 64bit and is limt to dsd 128. The sistem when go to 352khz no work, sound come but i have many noise.
What sound card option you install on dietpi? Thanks for all answer.
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